Extension roller-skate



J. S. GRAVELY EXTENSION ROLLER SKATE Filed April 29,- 1925 Patented June 15,1926.

UNITED STATES PATENT OFFICE.

JULIAN S. GRAVELY, OF WYTHEVILLE, VIRGINIA, ASSIGNOR T WINCHESTER RE- PEATING ARMS 00., OF NEEV ITAVEN, CONNECTICUT, A CORPORATION.

EXTENSION ROLLER-SKATE.

Application filed April 29,1925. Serial No. 26,596.

My invention relates to an improvement in that class of roller-skates known as extension roller-skates on account of-their adaptation to be extended to fit shoes of varying length, the object being to provide, ata low cost for manufacture, asimple, convenient and durable skate of the character described, constructed with particular reference to fewness of parts and rigidity in use.

lVith these ends in view, my invention consists in an extension roller-skate characterized by having its heeland toe-plates provided with self-stiffening, rigidly-attached, telescopic girder-extensions, sliding one within the other, with means for clamping them rigidly together. 7

My invention further consists in an extension roller-skate characterized as described and having further details of construction and combinations of parts as will be hereinafter described and the claim.

In the drawings:

Fig. 1 is a plan view of an extension rollerskate constructed in accordance with my invention.

Fig. 2 is a View thereof in side elevation.

Fig. 3 is a transverse, sectional view on the line 3 3 of Fig. 1.

F ig. 4 is a corresponding view on the line 4-4 of Fig. 1. V

Fig. 5 is a corresponding View on the line 5-5 of Fig. 1.

Fig. 6 is a detached, perspective view of the front girder-extension.

"Fig. '7 is a corresponding view of the rear girder-extension. I

In carrying out my invention, as herein shown, I employ a self-stiifening heelplate girder-extension 10 and a complementary, self-stiffening toe-plate girder-extension 11, these girder-extensions being struck up from heavy sheet-metal stock into trough-shaped form, by which they are rendered self stiffening. The upstanding, parallel, longitudinal flanges 12 of the heel-plate girder-extension 10 are formed upon their upper edges with rivet-lugs 13 entering rivet-holes 14 in the pointed out in heel-plate 15, in which they are swaged, whereby the said extension, 10 is rigidly attached to the heel-plate of the skate. The toe-plategirder-extension 11 is formed with corresponding stiffening flanges l6 and made just enough wider than the complementary extension 10 to permit the same to fit snugly within it, with opportunity for longitudinal but no lateral play. At its forward end, the extension 11 is formed withheeland toe-plates 15 and 19, provide for uniting the said plates with the maximum of rigidity, lightness, range of extension, and

ease of adjustment.

Otherwise than as described, my improved skate may be of any standard construction. As herein shown, the heel-plate 15 is provided with a struck-up, metal hanger 23 mounting a pair of wheels 24. In like manner,the toe-plate 19 is provided with a hanger 25 mounting apair of wheels 26. The heelplate is provided with an integral, upturned heel-flange 27 to which fastening straps (not shown) are applied, while the toe-plate is provided with the usual sole-clamps.

I claim:

An extension roller-skate having a heel plate and a toe plate, a self-stiffening U- girder extension riveted to each of said plates, and sleeving one within the other, one of said extensions being long enough to have its ends bearing agains the under side of each of said plates respectively at all times,

and a clamplng device for clamping the said extensions together.

In testimony whereof, I have signed this specification.

JULIAN S GRAVELY. 

